A Multimode Responsive Aptasensor for Adenosine Detection

Figure 3

(a) Fluorescence spectra depending on adenosine concentrations from 0 to 60 μM. (Inset: the plot of the fluorescence ratio versus the increasing concentrations of adenosine of the same data.) (b) Photograph showing colorimetric responses of detection system in the presence of 0 μM and 40 μM adenosine. (c) Raman spectra obtained from the QDs-AuNPs probe with various concentrations of adenosine. (d) Raman intensity at peak of 1081 cm⁻¹ and 1583 cm⁻¹ of the QDs-AuNPs probe incubation with different concentrations of adenosine.

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